The value of adding posterior interbody fusion in the surgical treatment of degenerative lumbar spine disorders: A systematic review

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Fig. 1
Comparison of fusion rate between interbody fusion (intervention) and PF (control) groups.
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Fig. 2
Comparison of functional outcome between intervention and control groups.
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Fig. 3
Comparison of complication rate between intervention and control groups.

Table 1

Characteristics of included studies

Study	Methodology	Participants	Intervention	Outcome
Suk et al.¹⁰ (Spine 1997)	Retrospective with 3.3-y FU	76 patients, aged 30-60 y, with spondylolytic spondylolisthesis	Group 1: 40 patients with PF (1988-1991) Group 2: 36 patients with PIF + PF (1991-1993)	Kirkaldy-Willis criteria
Madan and Boeree⁹ (Spine 2002)	Retrospective with 2.1-y FU	44 patients (27 M and 17 F), aged 24-67 y, with isthmic spondylolisthesis	Group 1: 21 patients with PIF + PF Group 2: 21 patients with PF	Oswestry Disability Index, Zung Depression Scale, MSPQ, VAS, core set, and pain drwoing
Lidar et al.⁸ (Surg Neurol 2005)	Retrospective with 2-y FU	100 patients (60 M and 40 F), aged 42-50 y, with DDD (48), recurrent disc herniation (22), spondylolisthesis (16), or spinal stenosis (14)	Group 1: 45 patients with PIF + non-instrumented fusion Group 2: 55 patients with PF with instrumentation	Prolo Economic and Functional Scale, complications, and fusion rate
Dehoux et al.⁶ (Acta Orthop Belg 2004)	Prospective nonrandomized with 6-y FU	52 patients, aged 14-63 y, with isthmic spondylolisthesis	Group 1: 27 patients with PIF Group 2: 25 patients with PF	Modified Beaujon score and fusion rate
La Rosa et al.⁷ (J Neurosurg 2003)	Retrospective with 2-y FU	35 patients (21 M and 14 F), aged 32-74 y, with isthmic spondylolisthesis	Group 1: 17 patients with PIF (1999-2000) Group 2: 18 patients with PF (1997-1999)	Prolo Economic and Functional Scale

Abbreviations: DDD, degenerative disc disease; F, female; FU, follow-up; M, male; MSPQ, Modified Somatic Perception Questionnaire; VAS, visual analog scale.